Coelho, Ana I
Lourenço, Sílvia
Trabuco, Matilde
Silva, Maria João
Oliveira, Anabela
Gaspar, Ana
Diogo, Luísa
Tavares de Almeida, Isabel
Vicente, João B
Rivera, Isabel
Article History
Received: 7 December 2013
Revised: 24 June 2014
Accepted: 28 June 2014
First Online: 23 July 2014
Competing interests
: The authors declare no conflict of interest.